Non-vibrator ignition apparatus for internal-combustion engines.



M. B. URIST & M. R. WELLS.

NON-VIBBATOR IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED FEB.15, 1906.

1,037,732. v Patented Sept.3,1912.

j I 55 E- g -2 we'massss; v VENTOR position and the mercury in the arm 12, be-

In Fig. 1 the cam 9 is in such position that.

the diaphragm 7 has just started on its downward motion and the oil expelled from the chamber 5 into the tube '6 against the pressure of the air in the top portion -16 forces the mercury of the arm 12 to recede from the tube 6 and break the contact between it and the mercury contained in the arm 13.. The wire 14 connects with a battery 17 which is connected to a lead 18 of a primary coil 19 of a transformer 20. The wire 15 is connected to a lead 21 of the primary coil 19 and completes the primary circuit. A condenser 22 is connected between the wires 14 and 15 in parallel with the contacts of the circuit breaker. A spark gap 23 is maintained between the high voltage terminals 24 and 25 of a secondary coil 26,

forming a portion of the induction coil 20.

Upon breaking the primary circuit by forcing the oil down the tube 6, and causing the mercury to recede into the arm 12, an induced current is generated in the second arycoil of the induction coil and a high voltage spark is caused to jump across the gap 23. Since the contact between the arms 12 and 13 is broken by the interposition of suitable oil, the tendency for the primary circuit to are is practically overcome and since the suitable oil does not char or car.-'

bonize, no diiiiculties are encountered with the terminals and the make and break device is practically indestructible. The high terminal leads 2% and 25 of the secondary coil may be connected. to a spark plug of the engine, which is not shown.

Having now described our invention, what we claim as new and useful is:

l. lln an electric circuit, a circuit breaker comprising a closed chamber containing a fluid nonconductor, a dielectric tube communicating therewith and provided with communicating arms joined to the tube at a common point, a body of mercury contained in each arm and each forming a terminal in said circuit, a body of air between. one body of mercur and the end of the arm in which it is contained and adapted to exert pressure on the mercury, a flexible wall for said chamber and means for imparting movement to said wall to cause the fluid nonconductor to oscillate the mercury contained in said tube to cause the two bodies of mercury tocome together and separate and thereby make and break said circuit.

2. In an electric circuit, a circuit breaker- 'coinpr1s1ng a closed chamber containing a fluid nonconductor, a tube communicating with said chamber and provided with com.- municating arms joincd to the tube. at a common point, a body of mercury maintained in each arm, a body of air between one body of mercury and the end of the arm in which it is contained and adapted to e. ert pressure upon the mercury, a flexible wall for the chamber whereby the mercury contained in one arm is capable of fluctuating in response to variations of pressure created in said chamber to move into and out of. contact to the body of mercury in the other arm to make and break said circuit and means for actuating said flexible walls. In testimony whereof we have hereunto subscribed our names this 13th day of February, 1906.

lltiARliQ B. Gltifi i. MEREITT R. VJELLQ.

Witnesses 2 CHARLES W. l /lctl'nru, E. V7. ll/ICQALLISTER. 

